Question

Which term of ap is 84 80 76 72 will be first negative term?

Answer 1

Answer:

First negative term of this AP is at 23 rd term

Step-by-step explanation:

Answer 2

Answer:First we have to find, which term of given AP is 0

An=a+(n-1)d

0=84+(n-1)(-4)

0-84=-4n+4

-84-4=-4n

-88/-4=n

n=22

Therefore, 22nd term of AP is 0

So,23rd term of AP is first negative term.

Hope it helps...